According to this Comscore new study, there was 1 billion Internet users aged 15+ in December 2008.
Looking at the regional breakdown, Asia/Pacific comes first with 41% of the audience, but Europe comes second with 28% audience share. North America is third with 18%.
In terms of country share, if China and the US are far ahead (China being apparently overtaking US for the first time), Germany, the UK and France come respectively #4,5 and 6, Russia is #8, while Italy and Spain are #12 and 13 and Netherlands #15 (with 11M unique visitors, which is amazing for a 16M populated country). If you add all of them together, their share is bigger than China’s, but the fragmentation of this audience shows on the top properties breakdown where all websites are originated from US or China.
It’ll be interesting to see where Europe and US will be in the future when China, Russia, India, Brazil and Mexico continue to grow fast.